EP3406772B1 - Liteau et cadre de lisses - Google Patents

Liteau et cadre de lisses Download PDF

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Publication number
EP3406772B1
EP3406772B1 EP17172197.0A EP17172197A EP3406772B1 EP 3406772 B1 EP3406772 B1 EP 3406772B1 EP 17172197 A EP17172197 A EP 17172197A EP 3406772 B1 EP3406772 B1 EP 3406772B1
Authority
EP
European Patent Office
Prior art keywords
heald
stave
fastening element
base body
receiving space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17172197.0A
Other languages
German (de)
English (en)
Other versions
EP3406772A1 (fr
Inventor
Christian Gerth
Ralph Simmack
Stefan Kailer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP17172197.0A priority Critical patent/EP3406772B1/fr
Priority to JP2018097912A priority patent/JP7139149B2/ja
Priority to CN201810494873.0A priority patent/CN108930084B/zh
Publication of EP3406772A1 publication Critical patent/EP3406772A1/fr
Application granted granted Critical
Publication of EP3406772B1 publication Critical patent/EP3406772B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0625—Composition or used material
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0633—Heald bars or their connection to other frame parts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0691—Arrangements of means for damping or noise reduction

Definitions

  • Shaft rods for heald frames are known in many designs.
  • hollow profile rods extruded from aluminum are often used as the base body for the shaft rod.
  • Additional components such as a stranded support rail, guide elements, drive elements, components for connecting a side support and others are usually attached to these aluminum profiles.
  • stiffening rods e.g. carbon fiber composite rods and damping strips made of plastic, are known as stops for the strands lined up with play.
  • the DE 102 06 130 B4 shows a damping band that is firmly clamped to an aluminum shaft rod or to an additional intermediate profile. There is no stiffening bar.
  • the DE 199 62 977 A1 shows damping tapes that are glued on, for example. No stiffening bar is shown in this document.
  • the EP 2 669 413 A1 shows a heald frame for high-speed looms which has both a stiffening rod and a damping band.
  • the damping band is placed in or around the stiffening rod and held by it with little play by a kind of form fit.
  • the in EP 2 669 413 A1 The stiffening rods and / or damping strips shown are very filigree and cannot be produced in a reproducible manner, or cannot be produced sufficiently, with the usual methods due to the small dimensions and narrow radii. In practice, these problems lead, among other things, to failure of the stiffening rod or the damping band. Due to the limited space, no way was found to fix the two partners with a form fit without at least one of the two being at risk of breakage.
  • the object of the present invention is to propose a shaft rod in which a stiffening rod and a damping band are integrated into the installation space present on the shaft rod and in which the stiffening rod and the damping band also have sufficient stability.
  • a shaft rod for high-speed looms has a base body and a stiffening rod.
  • the shaft rod is characterized in that the base body, together with the stiffening rod, forms a receiving space in which a fastening element of a damping band can be held in a form fit as a stop for strands lined up with play.
  • An appropriately adapted damping band can be added later or, if necessary, exchanged and replaced with a new one.
  • a shaft rod which has a base body, a stiffening rod and a damping band and in which the main body together with the stiffening rod forms a receiving space in which a fastening element of the damping band is accommodated.
  • the existing installation space can be used to the best possible extent by means of a receiving space which is delimited together by the base body and the reinforcing rod.
  • a stiffening rod in the sense of the present invention applies to bodies fixed on a base body, the primary task of which is to increase the flexural rigidity of the base body.
  • the heddle support rail also often noticeably increases the flexural rigidity of the base body, although the main task of the heddle support rail is to hold the strands.
  • the stranded support rails are usually made of hardened steel.
  • Fastening elements for the heddle support rail are also known from the prior art, which in turn can increase the flexural rigidity of the base body as a side effect. Such elements are also not a stiffening rod in the sense of this invention and are accordingly also formed from materials that differ from the material of the stiffening rod.
  • the base body is preferably a hollow profile rod extruded from aluminum or a light metal alloy, which includes various functions.
  • the heddle support rail can be attached to a chamberless extension of the base body.
  • In the chamber there can be a Be housed connection to a side support. All elements that serve to fulfill such basic functionalities form the basic body - even in the case of a multi-part design.
  • a base body which is set up for a shaft rod according to the invention provides the possibility of connecting a stiffening rod increasing its flexural rigidity and, with such a stiffening rod, forms a receiving space for a damping band.
  • the stiffening rod is geometrically designed so that it can be easily attached to the base body in a way that is most advantageous for increasing the flexural strength of the base body and, for example, in the EP 2 669 413 A1 is described.
  • the stiffening bar has geometric features with the aid of which a receiving space for a damping band is formed, for example a projection as explained in detail later.
  • the reinforcing rod also fulfills the function of forming, together with the base body, a receiving space for a damping band.
  • the stiffening bar should preferably not serve to fasten the heddle support rail to the base body.
  • the damping band is preferably an extruded plastic profile.
  • the base body, the stiffening body and preferably also the damping band run over the entire length of the shaft rod.
  • the construction space available for the heald frame is limited in the transverse direction by the pitch of the heald frames in the loom, generally to 12 mm per heald frame.
  • the main body of the shaft rod therefore usually has a maximum extension of approximately 10 mm or less in this direction.
  • the optimal use of the installation space creates a receiving space in which a fastening element of a damping band fits, which can be produced in a stable and reproducible manner.
  • the stiffening profile can be made less filigree than in the prior art and is accordingly also sufficiently stable.
  • the fastening means is held in the receiving space by a form fit. This means that no additional elements are required to attach the damping profile to the shaft rod.
  • the fastening element is advantageously received in the receiving space with play.
  • the damping band can simply be drawn into the receiving space from the side in the longitudinal direction.
  • the receiving space has an opening through which the fastening element of the damping band can engage in the receiving space. It is also preferred if a clear width of this opening is smaller than the clear width inside the receiving space, wherein according to the invention the slight width of the opening and the clear width of the receiving space are each delimited by the base body on the one hand and the stiffening rod on the other.
  • An undercut can thus be formed for the fastening element.
  • An undercut is generally a design feature that prevents separation from a second part by means of a protrusion or a widening on one part by the second part enclosing an open chamber or accessible space from which the protrusion or the widening of the first part cannot be destroyed without destruction or deformation can be taken out.
  • the fastening element can then work together with the undercut and thus fix the damping band on the shaft rod.
  • the fastening element can be angled while approximately maintaining its wall thickness.
  • the fastening element widens compared to its simple wall thickness and cannot fall out of the receiving space because the fastening element is wider than the clear width of the opening of the receiving space due to this angled course.
  • the undercut can be formed by the design of the stiffening rod or by the shape of the base body or by both.
  • a projection can be arranged on the base body through which the clear width of the opening in the Compared to the clear width of the recording room is reduced.
  • such a projection will project at least partially in the transverse direction against the course of the base body in the height direction.
  • a projection running in this way can also or only be present on the stiffening rod.
  • the receiving space can have at least one delimiting surface which is arranged at an acute angle to the vertical direction and to the transverse direction of the base body.
  • the boundary surface of the receiving space arranged on the base body can only run in the height direction.
  • the base body can be designed to be as weight-saving as possible.
  • Figure 1 shows an embodiment of a shaft rod 1 in a sectional view parallel to the longitudinal direction L.
  • no components that are insignificant for the invention such as guide elements and the like, are shown.
  • Only a heddle support rail is shown.
  • Only one gluing gap is shown at the gluing points; further simplifications that do not work directly with the invention have been implemented.
  • a stiffening rod 3 and a damping band 4 are attached to the base body 2 in the vicinity of the heddle support rail.
  • FIG 2 shows an enlarged section Figure 1 , in particular the stiffening rod 3 and the damping band 4 are clearly visible in this view.
  • the stiffening rod 3 is encompassed by the base body 2 on parts of its extension from 3 sides.
  • the stiffening rod 3 has a projection in the transverse direction at its lower end.
  • the damping band 4 has a hollow body section and, proceeding therefrom, a fastening element 6 which is roughly in the form of the number “7”. As a result, the fastening element 6 expands in the transverse direction Q and is thus held in the receiving space 5 by a form fit.
  • the projection of the stiffening rod 3 runs at an acute angle to the height direction H and to the transverse direction Q.
  • the fastening element 6 of the damping band 4 rests on the corresponding inclined surface and on the boundary wall that is formed by the base body 2 and extends in the height direction H. It can be clearly seen that in this view there is still a free space in the receiving space 5 above the fastening element 6. The fastening element 6 is thus received in the receiving space 5 with play. It can also be clearly seen that the fastening element 6 is held in the receiving space 5 by a form fit and cannot fall out of the receiving space 5 in this illustration. Because of its curved shape, the fastening element 6 is wider than the clear width Wö of the opening 7 of the receiving space 5.
  • the opening 7 of the receiving space 5 and the clear width Wö of the opening 7 and the clear width Wa in the interior of the receiving space 5 can be seen better in FIG.
  • the Figure 3 the cutout Figure 2 , in which the damping band 4 is shifted in the height direction H downwards.
  • the clear width Wö of the opening 7 and the clear width Wa inside the Recording space 5 are indicated by arrows. It can be clearly seen that the arrow for the clear width Wa in the interior of the receiving space 5 is longer than the arrow for the clear width Wö of the opening 7. This creates an undercut through the projection of the stiffening rod and the base body, whereby the damping band 4 by means of its Fastening element 6 can be set.
  • Figure 4 shows a further embodiment of a shaft rod 1 in a view like Figure 1 .
  • all of the boundary walls of the receiving space 5 run in the height direction H or transverse direction Q.
  • the damping band again has a hollow body section, the fastening element runs at an angle of 90 °.
  • the angled section of the fastening element 6 is held in the receiving space 5 by a form fit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Vibration Prevention Devices (AREA)

Claims (8)

  1. Liteau (1) pour métiers à tisser fonctionnant rapidement, qui comprend un corps de base (2) et une barre de renforcement (3), caractérisé en ce que le corps de base (2) forme conjointement avec la barre de renforcement (3) une chambre de réception (5), dans laquelle un élément de fixation (6) d'une bande d'amortissement (4) peut être maintenu dans un accouplement de forme en tant que butée pour des cordons alignés avec un jeu.
  2. Liteau (1) selon la revendication 1, caractérisé en ce que le liteau comprend une bande d'amortissement (4) et l'élément de fixation (6) est maintenu dans la chambre de réception (5) par un accouplement de forme.
  3. Liteau (1) selon la revendication 2, caractérisé en ce que l'élément de fixation (6) est reçu avec un jeu dans la chambre de réception (5).
  4. Liteau (1) selon l'une quelconque des revendications 2 à 3 précédentes, caractérisé en ce qu'une largeur intérieure (Wö) d'une ouverture (7) de la chambre de réception (5) est inférieure à la largeur intérieure (Wa) à l'intérieur de la chambre de réception (5) et ainsi une contre-dépouille pour l'élément de fixation (6) est formée.
  5. Liteau (1) selon l'une quelconque des revendications 2 à 4 précédentes, caractérisé en ce que l'élément de fixation (6) s'étend sous forme repliée en conservant approximativement son épaisseur de paroi.
  6. Liteau (1) selon l'une quelconque des revendications 2 à 5 précédentes, caractérisé en ce que la chambre de réception (5) comprend au moins une surface de délimitation, qui est agencée à un angle aigu par rapport à une direction de hauteur (H) et une direction transversale (Q) du corps de base (2).
  7. Liteau (1) selon l'une quelconque des revendications 2 à 6 précédentes, caractérisé en ce que la surface de délimitation, agencée sur le corps de base (2), de la chambre de réception (5) s'étend uniquement dans la direction de hauteur (H).
  8. Cadre de lisse, qui comprend un liteau selon l'une quelconque des revendications précédentes.
EP17172197.0A 2017-05-22 2017-05-22 Liteau et cadre de lisses Active EP3406772B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17172197.0A EP3406772B1 (fr) 2017-05-22 2017-05-22 Liteau et cadre de lisses
JP2018097912A JP7139149B2 (ja) 2017-05-22 2018-05-22 フレームスティーブ及びヘルドフレーム
CN201810494873.0A CN108930084B (zh) 2017-05-22 2018-05-22 框架板和综框

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17172197.0A EP3406772B1 (fr) 2017-05-22 2017-05-22 Liteau et cadre de lisses

Publications (2)

Publication Number Publication Date
EP3406772A1 EP3406772A1 (fr) 2018-11-28
EP3406772B1 true EP3406772B1 (fr) 2021-02-24

Family

ID=58745150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17172197.0A Active EP3406772B1 (fr) 2017-05-22 2017-05-22 Liteau et cadre de lisses

Country Status (3)

Country Link
EP (1) EP3406772B1 (fr)
JP (1) JP7139149B2 (fr)
CN (1) CN108930084B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900008379A1 (it) * 2019-06-07 2020-12-07 Itema Spa Traversa di quadro-liccio per telai di tessitura a rigidita' migliorata
IT201900009114A1 (it) * 2019-06-17 2020-12-17 Itema Spa Quadro-liccio per telai di tessitura comprendente un dispositivo di frenatura del movimento per inerzia delle maglie nelle fasi di inversione di moto del quadro-liccio

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962977B4 (de) 1999-12-24 2012-03-08 Picanol N.V. Webschaft für eine Webmaschine
FR2812007B1 (fr) * 2000-07-24 2002-11-29 Burckle Et Cie Ets Cadre de lisse pour machine a tisser equipe d'un dispositif amortisseur de lisses et dispositif amortisseur de lisses
DE10206130B4 (de) * 2002-02-14 2016-09-01 Groz-Beckert Kg Webschaft mit mindestens einer Weblitze
DE10329219B4 (de) * 2003-06-28 2007-04-05 Groz-Beckert Kg Schaftstab mit beweglichem Litzendämpfungselement
DE10349383B4 (de) * 2003-10-21 2005-11-24 Groz-Beckert Kg Webschaft mit Mittelverbinder
JP3141316U (ja) * 2008-02-15 2008-05-01 ナンカイ工業株式会社 ロッド交換式織機のヘルド緩衝装置
BE1020352A3 (nl) * 2011-11-03 2013-08-06 Picanol Weefkader met een versterkingsprofiel.
EP2669413B1 (fr) * 2012-05-31 2018-11-28 Groz-Beckert KG Liteau avec barre de renfort pour une corde à lisse
JP6312194B2 (ja) * 2013-10-25 2018-04-18 新日鉄住金マテリアルズ株式会社 炭素繊維強化複合材製ヘルドフレームステーブ、及び、サイドステー取付部構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN108930084A (zh) 2018-12-04
CN108930084B (zh) 2022-03-04
JP7139149B2 (ja) 2022-09-20
EP3406772A1 (fr) 2018-11-28
JP2018197418A (ja) 2018-12-13

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